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21 条记录 (耗时 0.01 秒)

    Irregular surface ellipsograph
    5.
    发明授权
    Irregular surface ellipsograph 失效
    不规则表面椭圆体

    公开(公告)号：US5123171A

    公开(公告)日：1992-06-23

    申请号：US710820

    申请日：1991-06-05

    申请人： Charles F. Langston

    发明人： Charles F. Langston

    IPC分类号： B43L11/045

    CPC分类号： B43L11/045 ,  Y10S33/01

    摘要： An apparatus, of a compact pocket-sized design, for the description of accurate ellipses of an infinite number of conjugate and transverse diameters on flat and/or irregular surfaces, such as spherical or horizontal and vertical cylindrical tanks, having two identical, independent focal-point holders, a non-elastic inter-connecting cord and a variety of inter-changeable mounting bases to allow the mounting of the focal-point holders on soft, porous, non-porous, textured and metallic surfaces.

    摘要翻译： 用于描述在平坦和/或不规则表面（例如球形或水平和垂直圆柱形坦克）上无限数量的共轭和横向直径的精确椭圆的装置，具有两个相同的独立焦点 点支架，非弹性互连线和各种可互换的安装基座，以便将焦点支架安装在柔软，多孔，无孔，纹理和金属表面上。